摘要
采用化学沉淀法、煅烧法和浸渍法制备出了SO_42-/V2O_5-Bi_2O_3固体超强酸催化剂,并采用乙酸正丁酯的酯化合成反应作为探针反应,同时考察了影响SO_42-/V2O_5-Bi_2O_3固体酸催化剂催化活性的制备因素。结果表明SO_42-/V2O_5-Bi_2O_3固体超强酸催化剂的最佳制备条件为:组分摩尔比例n(V2O_5)∶n(Bi_2O_3)=1∶1,浸渍液(NH4)2SO_4浓度为2 mol/L,焙烧温度500℃,焙烧时间5 h,乙酸正丁酯合成酯化率为90.91%。
SO4^2-/V2O5-Bi2O3 solid acid catalyst was prepared by chemical precipitation method, calcinations method and pickling process. The synthesis of butyl acetate was selected as a probe reaction to test the performance of the solid acid catalyst. The result showed that the optimum preparation conditions of catalyst were as follows： molar ration of V2O5 to Bi2O3 was 1∶1, dipping solution（（NH4）2SO4） was 2 mol/L, the calcination temperature and calcination time were 500 ℃ and 5 h. The conversion yield of butyl acetate was 90.91 %.
出处
《广东化工》
CAS
2016年第24期41-42,10,共3页
Guangdong Chemical Industry
基金
贵州省教育厅自然科学研究项目黔教合KY字[2012]069号
关键词
固体酸催化剂
浸渍法
乙酸正丁酯
酯化
solid acid catalyst
pickling process
butyl acetate
esterification
